Lamp



FIG. 1 is a front perspective view from above and one side of a design of a lamp;

FIG. 2 is a rear perspective view from above and one side thereof;

FIG. 3 front view thereof;

FIG. 4 is a rear view thereof; and,

FIG. 5 is a side view thereof.

The broken line disclosure in the views represents portions of the lamp which form no part of the claimed design. 

CLAIM The ornamental design for a lamp, as shown and described. 